Albert ball



(No Model A. BALL.

GORE BREAKER AND LIFTER FOR ANNULAR ROCK DRILLS.

No. 315,889. Patented Apr. 14, 1885..

INVEN U W' 6 0M lhingmr. n. a

Paris. Phobi UNITED S'rarns Arnivr rrrcn.

ALBERT BALL, OF GLAREMONT, NEW HAMPSHIRE, ASSIGNOR TO THE SULLIVANMACHINE COMPANY, OF SAME PLACE.

CORE BREAKER AND LiFTER FOR ANNULAR ROCK-DRILLS.

SPECIPICATIONformin-g part of Letters Patent No. 315,889, dated April14, 1885.

Awlication filed December 20, 1884. (No model.)

To all whont it may concern:

Be it known that I, ALBERT BALL, of Glareinont, in the county ofSullivan and State of New Hampshire, have invented a new and ImprovedGore Breaker and Lifter for Annular Rock-Drills; and I do hereby declarethat the following is a full and exact description of the same,reference being had to the accompanying drawings, and to the letters ofreference marked thereon.

My invention relates to an apparatus for securing the cores produced inprospecting or drilling with diamond annular drills, and is another wayof obtaining the results explained in my two applications (Cases A andB) of the same date, and intended to be filed simultane ously herewith.

My invention employs breaking, grasping, and lifting spring-wedges,which are driven into engagement with the core by the force of a springunlocked by the impact of a drop;

vrod, or by the impact alone of a drop-rod,

or of both combined, the wedges referred to being secured to or a partofwedgc-arms, which arms traverse in recesses sunken in the sides of thecore-barrel, so as to project therein as little as possible. This way ofusing or attaching the spring-wedges can be used in connection with anyone of the breaking, grasping, and lifting wedges described in myapplications (Cases A and B) of even date herewith, and my drop-bar canalso be used in combination with any of my devices described in suchapplications for connecting said wedges with the plunger-pin.

In order to better understand this invention, reference should be had tothe accompanying drawings, in which- Figure l is a central verticalsectional View of my improvements contained in a tube or core barrel andin position as boring progresses. Fig. 2 is a top view of the cylinderK, (shown in section in Fig. 1.) Figs. 3 and 4 are respectivelysectional and bottom views of the same. Fig. 5 is a view of thedrop-rod, (shown also in part in Fig. 1.) Fig. 6 shows a verticalcross-section of the core-barrel, showing the grooves for thewedge-arms; Fig. 7, a bottom view of the plunger-pin, and Fig. 8 a sideview of the same.

in the core-barrel.

In the different drawings like letters refer to corresponding parts.

Arepresents the drill-head, attached by usual screw-threads to thelastlength of the drillpipe B, (usually called the core-barrel.) Theinside of the drill-head is preferably made with a bevel to receive thepoints of spring breaking-wedges I I I. These wedges are at the end andmay be a part of the wedge-arms c e, which are adapted to work in theslots 0 0 These slots are preferably made with a dovetail, as shown inFig. 6. The wedge-arms are secured to the end of the plunger-pin M byscrews or rivets a a (1. These wedge-arms, when in position, are at alittle distance from the core, between which and such arms and theinterior of the corebarrel there is always a clear open space for thepassage of water, and the spring-wedges are also entirely clear of andremoved from the core, except when operated to grasp it, as will beexplained. It is obvious that these wedge arms and wedges can be of anynumber, as may be preferred. The plunger -pin M, to whose lower end thewedge-arms c e are secured, is cut away at the bottom, as shown in Fig.7, for the convenient passage of water, and is cylindrical in body andgrooved at the top, so that it may be conveniently grasped and held bythe latchesF F, which in turn arepivoted to the cylinder K and pressedinto engagement by springs g These latches are arranged at a littledistance apart, and have beveled inner surfaces, as shown in Fig. 1.

J is a coiled spring held under tension between the bottom of thecylinder K and the lower part of the plunger-pin M.

K is a cylinder placed within the core-barrel and extending from the topof spring J to, or nearly to, the top of the core-barrel, and is securedin a central position within said coreloarrel by screws ff.

The Water-passage from the rod-coupling G is shown by the letter in, andis conical at the upper end thereof to give easier entrance, and thesimilar passage, N, through the cylinder K, is also conical at its upperend for the same purpose.

E denotes the drop-rod, cylindrical in form, with one or both endsrounded. When at work ZOO drilling, the wedges are held up out of theway of the core by the grooved end of the plungerpin M being grasped andheld by the springlatches F F.

When it is desired to stop drilling and to 'pull up the core, thedrop-rod E is put into the water-way and falls by its own weight (or iscarried by the force of the water) until it comes into contact with thelatches F F, which it opens, and allows the spring J to be released andits force to be transferred to the wedges I I I.

In case it is desired to do without a spring J, the weight of thedrop-rod can be adapted to give sufiieient blow to the end of theplunger-pin (after unlatohing it) to drive the wedges, or this springmay be so adjusted as to strength that the wedges may bedriven by thecombined force of the spring after it is re leased and the impact of thedrop-rod; When the wedges are driven forward, as described, they graspthe core and either breakit or it is broken in the act of drawing up thetubes, in either case the wedges holding the core safely and preventingits fall from the core-barrel.

I disclaim in this application the combination,with an annulardrill-head and core-barrel, of core grasping and lifting wedgesconnected with the interior thereof, with a clear open space at allparts between said wedges and the exterior of the core; also, thecombination, with such head and core-barrehof wedges, the head, theplunger-pin, and the latches; also, the combination,with such head andcore-barrel, of the cylinder H, the wedges,

the head, the p1unger-pin, the bolt L, and the latches; also, the combination,with such head and core-barrel, of the cylinder K, the spring,the plungerpin, the latches, the head, and wedges; also, thecombination,with such head and core-barrel, of the plungerq'oin, thevalve, the latches, the spring, the headand the Wedges, and thecombination,with such head and corebarrel, of the ball, the valve, thelatches, the plunger-pin, the spring, and the head,as set out in myapplication No. 150,851, filed December 20, 1884, for improvements incore breakers and lifters for annular rock-drills; also, the combinationof the ball, the valve, the latches,

the plunger pin, and the wedges, and the combination of the ball, thevalve,the latches, the plunger-pin, thehead, and the wedges, set out inmy application No. 150,852, filed December 20, 1884, for improvements incore tact to separate said latches and disengage them from saidplunger-pin, substantially as and for the purposes set forth.

3. The combination, with an annular drill-v rod and core-barrel, of thedrop-rod E, the

plunger-pin M, the latches F F, engaging with said plunger-pin, andbreaking and lifting wedges connected thereto, the spring J, operatingsaid plunger-pin, whereby the drop-rod by contact separates said latchesand disengages the plunger-pin, which is operated by the spring,substantially as and for the purposes set forth.

4. The combination, with an annular drillrod and core-barrel, of thedroprod E, the plunger-pin M, the latches FF,engaging with saidplungenpin, the spring J,operating said plungerpin, and the breaking andlifting wedges I I, connected with said'plunger-pin, whereby'thedrop-rod-separates the latches, disengages the plunger-pin whose springopcrates said plunger-pin and the connected wedges, substantially as andfor the purposes described.

In testimony whereof I affix my signature in presence of two witnesses.

ALBERT BALL.

